Robert Paul Griffin was an American politician. A member of the Republican Party, he represented Michigan in the United States House of Representatives and United States Senate and was a Justice of the Michigan Supreme Court. He co-sponsored the Landrum-Griffin Act, which regulates the internal affairs of labor unions. As a deputy minority leader in the Senate, he called on President Richard Nixon, a fellow Republican, to resign during the Watergate scandal.

Michigan's 9th congressional district is a United States congressional district located in The Thumb and northern portions of Metro Detroit of the State of Michigan. Counties either wholly or partially located within the district include: Huron, Tuscola, Sanilac, Lapeer, St. Clair, Macomb and Oakland. With a Cook Partisan Voting Index rating of R+18, it is the most Republican district in Michigan.